feat: Add the UI flow for Microsoft Oauth (#6243)

app/javascript/dashboard/api/channel/microsoftClient.js

@@ -0,0 +1,14 @@
+/* global axios */
+import ApiClient from '../ApiClient';
+
+class MicrosoftClient extends ApiClient {
+  constructor() {
+    super('microsoft', { accountScoped: true });
+  }
+
+  generateAuthorization(payload) {
+    return axios.post(`${this.url}/authorization`, payload);
+  }
+}
+
+export default new MicrosoftClient();